diff -r 000000000000 -r c8caa15ef882 simpleengine/engine/src/simpleengineimhandler.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simpleengine/engine/src/simpleengineimhandler.cpp	Tue Feb 02 01:05:17 2010 +0200
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    SIMPLE Engine IM Handler
+*
+*/
+
+#include "simpleengineimhandler.h"
+#include "simpleenginerequest.h"
+#include "simpleinstantmsgobserver.h"
+#include "simplesipconnection.h"
+#ifdef _DEBUG
+#include "simpledebugutils.h"
+#endif
+
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+// CSimpleEngineImHandler::CSimpleEngineImHandler
+// ---------------------------------------------------------------------------
+//
+CSimpleEngineImHandler::CSimpleEngineImHandler( MSimpleConnection& aConn,
+    MSimpleInstantMsgObserver& aObserver ) : CSimpleClient( aConn ),
+    iObserver( aObserver )
+    {
+    
+    }
+
+// ---------------------------------------------------------------------------
+// CSimpleEngineImHandler::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CSimpleEngineImHandler::ConstructL()
+    {
+    BaseConstructL();
+    
+    // Enable instant message receiving
+    ReceiveInstantMessageL();
+    }
+
+// ---------------------------------------------------------------------------
+// CSimpleEngineImHandler::NewL
+// ---------------------------------------------------------------------------
+//
+CSimpleEngineImHandler* CSimpleEngineImHandler::NewL(
+    MSimpleConnection& aConn,
+    MSimpleInstantMsgObserver& aObserver )
+    {
+    CSimpleEngineImHandler* self = new (ELeave) CSimpleEngineImHandler(
+        aConn, aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+#ifdef _DEBUG
+    TSimpleLogger::Log( _L("CSimpleEngineImHandler::NewL this=%d"),
+        (TInt)self );
+#endif
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CSimpleEngineImHandler::~CSimpleEngineImHandler
+// ---------------------------------------------------------------------------
+//
+CSimpleEngineImHandler::~CSimpleEngineImHandler()
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L("CSimpleEngineImHandler::~CSimpleEngineImHandler this=%d"),
+        (TInt)this );
+#endif
+    }
+
+// ---------------------------------------------------------------------------
+// From class MSimpleInstantMessage
+// Send instant message
+// ---------------------------------------------------------------------------
+//
+TInt CSimpleEngineImHandler::SendInstantMessage( TPtrC8 aMsgContent,
+    TPtrC8 aRecipient )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log( _L("CSimpleEngineImHandler::SendInstantMessage") );
+#endif
+    
+    IncreaseOpId();
+    TRAPD( error, DoSendInstantMessageRequestL( aMsgContent, aRecipient ) )
+    
+    if ( error )
+        {
+        return error;
+        }
+    
+    return iOpId;
+    }
+
+// ----------------------------------------------------------
+// From class MSimpleInstantMessage
+// CSimpleEngineImHandler::Close
+// ----------------------------------------------------------
+//
+void CSimpleEngineImHandler::Close()
+    {
+    delete this;
+    }
+
+// ---------------------------------------------------------------------------
+// From class CSimpleClient
+// Complete the open client request
+// ---------------------------------------------------------------------------
+//
+void CSimpleEngineImHandler::Complete( TInt aOpId, TInt aStatus,
+    MSimpleEngineRequest& aReq )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L( "CSimpleEngineImHandler::Complete opid=%d, status=%d - Start"),
+            aOpId, aStatus );
+#endif
+    
+    if( MSimpleEngineRequest::EReceiveIM == aReq.RequestType() )
+        {
+        if( !aStatus )
+            {
+            iObserver.HandleReceiveTextMessage( aReq.Recipient(),
+                aReq.ResponseData() );
+            }
+        // Open receive request was already deleted from SIP Utils side
+        // Activate receiving again
+        TRAP_IGNORE( ReceiveInstantMessageL() )
+        }
+    else if( MSimpleEngineRequest::ESendIM == aReq.RequestType() )
+        {
+        iObserver.SendInstantMsgReqComplete( aOpId, aStatus );
+        
+        // Delete the request as not needed anymore
+        
+        iRequest = MSimpleEngineRequest::ENone;
+        // Delete corresponding request from another DLL too.
+        aReq.ModifyType( MSimpleEngineRequest::EDestroy );
+        TRAP_IGNORE( SendReqL( aReq ) );
+        // delete request from this DLL.
+        aReq.Destroy();
+        }
+    else
+        {
+        // Unknown request
+        #ifdef _DEBUG
+            TSimpleLogger::Log(
+                _L( "CSimpleEngineImHandler::Complete - Unknown request") );
+        #endif
+        }
+    
+#ifdef _DEBUG
+    TSimpleLogger::Log( _L( "CSimpleEngineImHandler::Complete - End") );
+#endif
+    }
+
+// ---------------------------------------------------------------------------
+// Do Send Instant Message request
+// ---------------------------------------------------------------------------
+//
+void CSimpleEngineImHandler::DoSendInstantMessageRequestL( TPtrC8 aMsgContent,
+    TPtrC8 aRecipient )
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L( "CSimpleEngineImHandler::DoSendInstantMessageRequestL - Start") );
+#endif
+    CSimpleEngineRequest* req = CSimpleEngineRequest::NewL( *this,
+        MSimpleEngineRequest::ESendIM, iOpId );
+    CleanupStack::PushL( req );
+    
+    req->SetRefresh( ETrue );
+    req->SetRequestData( aMsgContent );
+    req->SetRecipientL( aRecipient );
+    
+    // send a request to engine DLL
+    SendReqL( *req );
+    iRequestList.AddLast( *req );
+    CleanupStack::Pop( req );
+    iRequest = MSimpleEngineRequest::ESendIM;
+    iSipStatus = KErrNone;
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L( "CSimpleEngineImHandler::DoSendInstantMessageRequestL - End") );
+#endif
+    }
+
+// ---------------------------------------------------------------------------
+// Receive instant message
+// ---------------------------------------------------------------------------
+//
+void CSimpleEngineImHandler::ReceiveInstantMessageL()   
+    {
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L( "CSimpleEngineImHandler::ReceiveInstantMessageL - Start") );
+#endif
+    IncreaseOpId();
+    
+    CSimpleEngineRequest* req = CSimpleEngineRequest::NewL( *this,
+        MSimpleEngineRequest::EReceiveIM, iOpId );
+    CleanupStack::PushL( req );
+    
+    req->SetRefresh( ETrue );
+    // Send a request to engine DLL
+    SendReqL( *req );
+    iRequestList.AddLast( *req );
+    CleanupStack::Pop( req );
+    iRequest = MSimpleEngineRequest::EReceiveIM;
+    iSipStatus = KErrNone;
+#ifdef _DEBUG
+    TSimpleLogger::Log(
+        _L( "CSimpleEngineImHandler::ReceiveInstantMessageL - End") );
+#endif 
+    }